Improvement in hay-elevators



'NITD'STATES EMMET VrR. GARDNER, OF JOHNSON, NEW YORK.

iMPRovEMi-:Nrm HAV-ELEVATORS.

Specification forming part of Letters Patent No. 161,1l4, dated March 23, 1875; application filed January 23, 1875.

To all whom it may concern:

Be it known that I, EMMET V. R. GARDNER, of Johnson, in the county of Orange and State of New York, have invented a new and valuable Improvement in Hay-Elevators; and I do hereby declare that the following` is a full, clear, and exact description ot' the construction and operation of the same, reference being had to the annexed drawings, making a part of this specification, and to the letters and tigures of reference marked thereon.l

Figures l and 2 of the drawings are representations pf vertical sections of my hay-elevator.

This invention has relation to improvements in hay-elevator carriages, for which a patent was granted to me July 7, 1874, No. 152,838; and the nature of the invention consists in a pulley-block having an extension upon its upper extremity terminating in a knob, in combination with a segment of a pulley-wheel rigidly secured to the elevator-carrier, and a v ertically-vibratin g recessed segment pivoted te the same, whereby the knob on the end of the pulley-block is adapted to be received into the recess of the vibrating segment, and to be there held while the carriage is run to any desired position in the mow, all as will be hereinafter more fully explained.

In the annexed drawings, A designates a hay-elevator carriage, consisting of two lateral beams, a, and two end beams, c', supported on transporting-wheels B, in connec- 'tion with which I propose to show the construction, advantages, and mode oi operation of my improved pulley-block. This blockdesignated by the letter G in the drawingsis, as regards its lower part or body, of the usual well-known form, its lower extremity being provided with an eye, c, by means of which the hay-fork is attached to it, but its upper extremity terminates in a tapering extension, c, having upon its end a right cylindrical or cylindroidal knob, D, and herein lies the gist of my invention.

Pulley-block() is raised up to the carriage by means of a rope, E, rigidly secured to the same at b, passing thence under sheave f over a pulley-wheel F, having its bearings in the lateral bars a a of the carriage. It is evident that by drawing upon this rope the said block will be raised upward, its knobD penetrating between the lateral bars a a of the carriage, where it is secured and held in the following manner, 'and by means ot the following catch, to wit:

Asegment, G, of a pulley-wheel is rigidly secured between bars c a of the carriage, the same having a deep peripheral groove, g. A vertically-vibrating angular segment, H, having a recess, i, out in its periphery, is then pivoted at h, between the said bars, with its peripheral edges nearly in contact with those of the iixed segment G, so that when the knob on the end of pulleyblock C is raised up to the carriage, penetrating between bars c c, it will strike against the said fixed segment, when it will be directed into the recess i of the vibrating segment H, forcing the latter upward. It' the rope be slackened the angular segment will jam the knob againstthe fixed block, effectually preventing its withdrawal therefrom and' allowing the carriage to conduct its load to any desired position. I designates a link pivoted to the lower angle of the vibrating segment H and to the contiguous end of a horizontally-arranged verticallyvibrating lever, J, pivoted at J to bars a a of the carriage, as shown in Fig. 1. This lever is provided with an actuating-trigger, K, the lower end of which projects a certain distance beyond the lower horizontal edge of the carriage. The free end of this lever engages with the upper hooked end of a gravitating stop, L, pivoted at Z, between bars a a of the carriage, and when in the position shown in Fig. 1 the said stop will rigidly hold lever J against vibration.

When the carriageis run to the desired position stop L is caused to vibrate, thereby releasing lever J' of restraint, when, by thrusting trigger K toward pulley-block O, its free end will be depressed, raising its other end and causing cam H to be vibrated downward through the medium of link I, thereby releasing the knob on the end of the said pulley-block from the gripe of the said cam, and allowing the block and its depending fork to be lowered to any desired position before tripping the same.

With a view to preventing cam H from undue downward vibration, whereby it would fail to be thrust upward by the knob of the G and knob D of pulley-block C, of the vertically-vibrating cam H, link I, lever J, and gravtating stop L, substantially as specified.

In testimony that I claim the above I have hereunto subscribed my name in the presence of two witnesses.

EMMET VAN RANSELAER GARDNER.

Witnesses DANI.. CoRWIN, DEWHT CONKLING. 

